SmokinJoe said:My recommendation would be a little different. I also like the 223AI, but would set it up for reliable stabilization of the 53 V-Max, which should be 1-11 twist ideally. You can get over 3700 fps with that combo, so it is pretty flat with lots of staying power due to the high BC, plus those bullets have great terminal performance. As far as the rest of the rifle, you have to decide first on what your style of shooting will be. Are you wanting to carry this thing around & shoot off a bipod maybe, or shoot strictly from a bench? Make that decision & we can be way more help.